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1348431841 = 367212
BaseRepresentation
bin101000001011111…
…0110111111100001
310110222022102202001
41100113312333201
510230144304331
6341445324001
745262324111
oct12027667741
93428272661
101348431841
11632177889
12317706601
13186494683
14cb12b041
157d5aa561
hex505f6fe1

1348431841 has 3 divisors (see below), whose sum is σ = 1348468563. Its totient is φ = 1348395120.

The previous prime is 1348431829. The next prime is 1348431853. The reversal of 1348431841 is 1481348431.

The square root of 1348431841 is 36721.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (1348431829) and next prime (1348431853).

It can be written as a sum of positive squares in only one way, i.e., 73441 + 1348358400 = 271^2 + 36720^2 .

It is not a de Polignac number, because 1348431841 - 213 = 1348423649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1348431841.

It is not an unprimeable number, because it can be changed into a prime (1348431871) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 18361 + ... + 55081.

It is an arithmetic number, because the mean of its divisors is an integer number (449489521).

Almost surely, 21348431841 is an apocalyptic number.

1348431841 is the 36721-st square number.

1348431841 is the 18361-st centered octagonal number.

It is an amenable number.

1348431841 is a deficient number, since it is larger than the sum of its proper divisors (36722).

1348431841 is an frugal number, since it uses more digits than its factorization.

1348431841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73442 (or 36721 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The cubic root of 1348431841 is about 1104.7813469621.

Multiplying 1348431841 by its product of digits (36864), we get a square (49708591386624 = 70504322).

The spelling of 1348431841 in words is "one billion, three hundred forty-eight million, four hundred thirty-one thousand, eight hundred forty-one".

Divisors: 1 36721 1348431841